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C1 Upper Radiator Hoses
Gentlemen and the few Ladies present:
I am a doubting Thomas when it comes to some of the markings that are purported to replicate original marks. Over the years I have examined many photographs illustrating old Corvettes. Mr. Noland Adams Vol. I and II have several photos dated when the particular Corvette model was new. Another source are old magazine articles that “road tested” a new Corvette. Also original book and manuals published by GM. Regretfully original cars are few and far between for examination.
I have seen the following printing in evidence in many of these period dated photographs of upper radiator hoses:
A numerical part number,
A single or dual stripe,
A date code,
A two letter alphabetic length code,
A two letter alphabetic vendor ID code,
And the abbreviation GM
I have never seen an ARROW or RAD marking in any of these old photos. It appears somewhat unusual that these marks have not yet been seen in photographs, when the other marks can be easily documented in many old photographs. Although the original blueprint may indicate such markings, that does not mean the actual parts were made with that printing. It is even possible that those notations were added years after the actual parts release for model year production. I have never seen a blueprint that indicated a single or dual inked stripe, however they are apparent in many old photos. What gives?
Would someone PLEASE provide a link to any dated photos that illustrate these marks: ARROW and RAD on an original C1 upper radiator hose. (Please do not offer after market and NCRS publications as evidence.)
Geoffrey Coenen
PS I am also looking for the same photographic evidence that C2 and C3 also originally had the ARROW and RAD marks.
PPS Lastly, I am also still looking for evidence of a repeating or singular GM [] = square marking on any 1970-1982 Corvette 5/8” or 3/4” heater hose.
No rewards are offered, just useless information bragging rights.
Gentlemen and the few Ladies present:
I am a doubting Thomas when it comes to some of the markings that are purported to replicate original marks. Over the years I have examined many photographs illustrating old Corvettes. Mr. Noland Adams Vol. I and II have several photos dated when the particular Corvette model was new. Another source are old magazine articles that “road tested” a new Corvette. Also original book and manuals published by GM. Regretfully original cars are few and far between for examination.
I have seen the following printing in evidence in many of these period dated photographs of upper radiator hoses:
A numerical part number,
A single or dual stripe,
A date code,
A two letter alphabetic length code,
A two letter alphabetic vendor ID code,
And the abbreviation GM
I have never seen an ARROW or RAD marking in any of these old photos. It appears somewhat unusual that these marks have not yet been seen in photographs, when the other marks can be easily documented in many old photographs. Although the original blueprint may indicate such markings, that does not mean the actual parts were made with that printing. It is even possible that those notations were added years after the actual parts release for model year production. I have never seen a blueprint that indicated a single or dual inked stripe, however they are apparent in many old photos. What gives?
Would someone PLEASE provide a link to any dated photos that illustrate these marks: ARROW and RAD on an original C1 upper radiator hose. (Please do not offer after market and NCRS publications as evidence.)
Geoffrey Coenen
PS I am also looking for the same photographic evidence that C2 and C3 also originally had the ARROW and RAD marks.
PPS Lastly, I am also still looking for evidence of a repeating or singular GM [] = square marking on any 1970-1982 Corvette 5/8” or 3/4” heater hose.
No rewards are offered, just useless information bragging rights.
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